Crystals of aspartame derivative
    4.
    发明授权
    Crystals of aspartame derivative 失效
    阿斯巴甜衍生物晶体

    公开(公告)号:US06818243B2

    公开(公告)日:2004-11-16

    申请号:US10183652

    申请日:2002-06-28

    IPC分类号: A23L1236

    CPC分类号: C07K5/06113 A23L27/32

    摘要: N-[N-[3-(3-hydroxy-4-methoxyphenyl)propyl]-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester useful as a sweetener with a high potency of sweetness, is provided in the crystalline form having a high stability and a good purity which is favorable as a commercial product.

    摘要翻译: 在结晶中提供了可用作甜度高的甜味剂的N- [N- [3-(3-羟基-4-甲氧基苯基)丙基] -L-α-天冬氨酰基] -L-苯丙氨酸1-甲基酯 形式具有高稳定性和良好的纯度,作为商业产品是有利的。

    Process for producing cinnamaldehyde derivatives, use thereof and the like
    8.
    发明申请
    Process for producing cinnamaldehyde derivatives, use thereof and the like 有权
    制备肉桂醛衍生物的方法及其用途等

    公开(公告)号:US20050245759A1

    公开(公告)日:2005-11-03

    申请号:US11154658

    申请日:2005-06-17

    摘要: A process for conveniently and efficiently producing a highly pure cinnamaldehyde derivative, for example, (2E)-(3-hydroxy-4-methoxy)cinnamaldehyde, which comprises reacting a benzaldehyde derivative, such as isovanillin and the like, with acetaldehyde in the presence of an alkali, in particular preferably, dropping acetaldehyde little by little thereto in an aqueous solution at a low temperature for the reaction thereof. The cinnamaldehyde derivative thus obtained is selectively reduced to produce 3-(3-hydroxy-4-substituted (with methoxy group or the like)phenyl)propionaldehyde. Further, through a reductive alkylation reaction of the compound thus produced with an aspartame, N-[N-[3-(3-hydroxy-4-substituted (with methoxy group or the like)phenyl)propyl]-L-aspartyl]-L-phenylalanine 1-methyl ester, which is useful as a sweetener having a high sweetening potency, can be industrially and efficiently produced. The processes therefor are also provided.

    摘要翻译: 方便有效地制备高纯度肉桂醛衍生物的方法,例如(2E) - (3-羟基-4-甲氧基)肉桂醛,其包括使苯甲醛衍生物如异喹啉腈等与乙醛在存在下反应 的碱,特别优选在低温下在水溶液中逐滴滴加乙醛进行反应。 由此得到的肉桂醛衍生物被选择性地还原以产生3-(3-羟基-4-取代的(与甲氧基等)苯基)丙醛。 此外,通过如此制备的化合物与天冬甜素的还原烷基化反应,N- [N- [3-(3-羟基-4-取代的(与甲氧基等)苯基)丙基] -L-天冬氨酰基] - 作为具有高甜味效力的甜味剂可用的L-苯丙氨酸1-甲酯可以在工业上有效地生产。 还提供了其工艺。